Sash-fastener.



J. D. SHIPMAN.

SASH FASTENER.

APPLIUATION FILED Du. s, 1913.

1,1 14,391 Patented Oct. 20. 1914.

U TED *STATESP ENT OFFICE.

JOHN DAVIS SHIPMAN, OF'SAN Aussie, exas;

\ seen-FASTENER- '1 2,- a]? (1-hour it may cone. n

lie 'it known that 1,-Joux Davis Sine-4' brovide a sash fastener. or lo k whieh'en-i tirelyavoids the use of spr1z2g- 'or other parts liable to get out of order.

A still further object of the invention is to provide a sash fastener or look including a gravity do or pawl on the sash adapted to engage a rack upon the window frame, eombined withmeans whereby the pawl may be retracted conveniently when the sash is elevated to release it from 'enqagement \\'il'll the rack and permit the'adjustment of the sash.

The invent ion consists of the features of emistruetion, combination and arrangement of paris herei n fully described and claimed, reference l-ieing had to the accompanying drawings, in whieh:--

Figure 'l is an elerational view showing the application of the invention to a window frame and sash. Fig. lis a similar View illustrating the dog releasing action. Fig. 3- is a ]')(1'S]fn.l2t-l\'( view of the bracket and dog detaelwd. Fig. 4 is 'a similar view of the rack.

lh-l'erriue' to the drawing. 1 designates a window sash, and one of the sides of a window frame. Upon the'said side 2 of the window frame is arrangcda rack 3, preferably formed of a strip of sheet metal bent or oll'set at inlerrals throughout its length to, rovide keeper reeesses or pockets 4,, an inclined stop wall Sat the top of each pocket, and an abutment wall or-surface (3 at the bollonfor lowei end of the pocket. Secured to the adjaeentside of thewin'dow frame is'a bracket plate 7', screwed or. otherwise secured thereto and provided upon its. outer face with a looppi housing 8, between which and the bracket plate extends a pin 9.

A gravity dog or'pawl 10 is provided for interlocking engagement with the rack, and

i .1 the passage ot.l'l e.p1; i. or dog s p fotally mounted to swing n a asses of artisan. Patented omen, 191 4.

is proridcdivith a -nianipulatingknob or handle 11. From the body portioiiof this i the loop orlniu in" S ml :is apertured for whereby the pawl "to the'planeof'the side ofthesash to which "the dog is att 'aelied.

liilg fixttllllli 'aflug1 12,: whieh projects into i downwardly 'and outwardly and formedfin, 5'

the upper surface of its extremityflvith a notch 14, the,said extreuiityaif theJdog belug adapted to, fit within ngage the pockets or recesses set-of ,th' racl fllrldog body 10 1s ariaagedonetl innei s de of the housing 5, and the arm 13 curves downwardly and outwardly. andextends across the bracket below said loop or housin The weight of the-dog is S l1Cl1 as to cause it to normally-dropby grai'ity to throw its locking arm into engagement with one ofthe recesses or poeketspf the rack. It will be understood from the foregoing description that by means of the knob 11 the pawl may be swung upwardly, thereby wit-hdrawiug its arm 13 inwardly from engage ment with the rack, allowing the window frame to be adjusted as desired, \V hen the looking arm enters a recess or pocket 4 its notched portion engages the wall 5 thereof, thus arresting upward movement of the sasli, so that upon the. release of the sash the arm will gravitate easily into engagement with the underlying abutment surface 6 by which the sash will be locked against movement in either direction in adjusted position. The lower faee of the dog is curved in such manner that when the dog is positively tilted from retractiom-the arm will slide easily off the surface (i engaged thereby, thus-prevent ing the dog from hanging or bindii in the rack pocket. fThe downward or loek pg motion of the ddg is limited by a eoutae't of the lug with the: lower wall of the loop gi-"housing, while'the' upward or retractedmotion of the dog is limited by a guide loop or eye 15 projecting from the upper portion of the bracket. Through this loop or beyond is extended a retracting cord 16, which is attached at its upper end to the lumber handle 11, the lower end of the'cord depending to a convenient position so that when the sash is elevated the operator may retract the latch from below, thns-ayoiding the necessity of reaehing up or standing upon a chair or other object to manipulate the knob. If desired, a guide member 17 may be mounted and to otherwise maintain the cord in proper pendent position.

From the foregoing descriptiom'taken in connection with the drawing, it will be seen that my invention provides a sash fastener which is simple of construction, which is adapted to automatically look by gravity and dispenses, with the use of springs, whereby reliability of action is secured, and which 15- pos itive in operation and adapted to be conveniently'manipulated to lock the sash in open, closed oi: any intermediate position, the advantages of which will be manifest.

1. In combination with a rack, a fasteneradapted for cooperation therewith, said fastenercomprisin a bracket plate, a gravity dog pivoted to t e bracket plate and having a lug projecting laterally therefrom, and a curved arm projecting downwardly and outwardly below said lug, a guide upon'the bracket above the pivot of the dog, and a cord extending through said guide and connected with the body of the dog above the plane of the pivot.

2.'In a sash fastener, a rack, a bracket plate, a gravity dog comprising a weighted body having :1 lug projecting laterally therefrom and pivoted. to the bracket and a curved arm pr\. .cting therefrom downwardly and outwardly below said lug, an

operating element connected with the dog.-

body, a uide upon the body above the pivot of the 0g, and a cord extending through said guide and connected with the body of the dog above the plane of the pivot.

In testimony whereof I afiix my signature;

inpresence of two witnesses.

J DAVIS SHIPMAN. Witnesses:

OSCAR VAN Coun'r. H. G. Pmmars. 

